Home / 856,779.83-1,283,126.86-496,188.80

Finding the Fourth Proportional to 856,779.83, 1,283,126.86 and 496,188.80

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Solution

The fourth proportional to 856,779.83, 1,283,126.86 and 496,188.80 is: 743,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,779.83 : 1,283,126.86 = 496,188.80 : x
  2. Step 2: Convert to fraction form
    856,779.83/1,283,126.86 = 496,188.80/x
  3. Step 3: Cross multiply
    856,779.83x = 1,283,126.86 × 496,188.80
  4. Step 4: Simplify right side
    856,779.83x = 636,673,176,911.17
  5. Step 5: Solve for x
    x = 636,673,176,911.17/856,779.83
  6. Step 6: Final answer
    x = 743,100.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.